Changes to POST /v2/create-phone-call

POST /v2/create-phone-call

Every recorded change to this endpoint, newest first. Back to the operation

Changed in 21 of the 28 revisions of this API.941966

  1. 40402ca870b922
  2. 6342a999010821
  3. 6dff2a12f8663
  4. 7c30e3ea25363
  5. 7dd16ddf69d81
  6. f1a0d7c1e36c35
  7. 1b4a9d84942a53
  8. a44406f743c2651
  9. 8ee53928bf3127
  10. 56de19127afb13
  11. 3aa6f6e028ef46
  12. 424df3aa790014
  13. 8fbf8c54a142729
  14. e89903d2c91031
  15. bcff6899fa2a6
  16. fa27384016831
  17. 076d0088c7ed2
  18. 0bf5cea5dfcc62
  19. dfad228ab4a413
  20. 427e77039f39110
  21. 9dbbdaf34f4b1

What changed

  • 40402ca870b922See the full diff
    • added InjectedUtterance to the allOf[V2CallBase]/scrubbed_transcript_with_tool_calls/items/ response property oneOf list for the response status 201

      response-property-one-of-added

    • added InjectedUtterance to the allOf[V2CallBase]/transcript_with_tool_calls/items/ response property oneOf list for the response status 201

      response-property-one-of-added

    • changed the pattern of the request property override_agent_version/oneOf[subschema #2]/ from ^(latest|(?!(?:v\d+)$)[a-z][a-z0-9_-]{0,19})$ to ^(latest|latest_published|(?!(?:latest|latest_published|v\d+)$)[a-z][a-z0-9_-]{0,19})$

      request-property-pattern-changed

    • added the new no_concurrency_fallback enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

  • 6342a999010821See the full diff
    • added SmsUtterance to the allOf[V2CallBase]/scrubbed_transcript_with_tool_calls/items/ response property oneOf list for the response status 201

      response-property-one-of-added

    • added SmsUtterance to the allOf[V2CallBase]/transcript_with_tool_calls/items/ response property oneOf list for the response status 201

      response-property-one-of-added

    • removed the request property agent_override/agent/is_public

      request-property-removed

    • the retell_llm_dynamic_variables/additionalProperties/ request property type/format changed from / to string/

      request-property-type-changed

    • the allOf[V2CallBase]/collected_dynamic_variables/additionalProperties/ response's property type/format changed from / to string/ for status 201

      response-property-type-changed

    • the allOf[V2CallBase]/retell_llm_dynamic_variables/additionalProperties/ response's property type/format changed from / to string/ for status 201

      response-property-type-changed

    • added the new gpt-realtime-2 enum value to the request property agent_override/retell_llm/s2s_model

      request-property-enum-value-added

    • added the new s2.1-pro enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

    • added the new sonic-3.5 enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

    • changed the pattern of the request property override_agent_version/oneOf[subschema #2]/ from ^[a-z0-9_-]+$ to ^(latest|(?!(?:v\d+)$)[a-z][a-z0-9_-]{0,19})$

      request-property-pattern-changed

    • removed the enum value gemini-2.5-flash of the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-removed

    • removed the enum value gemini-2.5-flash of the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-removed

    • removed the enum value gemini-2.5-flash of the request property agent_override/retell_llm/model

      request-property-enum-value-removed

    • added the new optional request property agent_override/agent/allow_dtmf_interruption

      new-optional-request-property

    • added the new optional request property agent_override/agent/call_screening_option

      new-optional-request-property

    • added the new optional request property agent_override/agent/ivr_option/detection_prompt

      new-optional-request-property

    • added the new optional request property agent_override/agent/voicemail_option/detection_prompt

      new-optional-request-property

    • request property override_agent_version list-of-types was widened by adding types string to media type application/json

      request-property-list-of-types-widened

  • 1b4a9d84942a53See the full diff
    • added AsrProvider to the agent_override/agent/custom_stt_config/provider request property allOf list

      request-property-all-of-added

    • removed the enum value azure of the request property agent_override/agent/custom_stt_config/provider

      request-property-enum-value-removed

    • removed the enum value deepgram of the request property agent_override/agent/custom_stt_config/provider

      request-property-enum-value-removed

    • removed the enum value soniox of the request property agent_override/agent/custom_stt_config/provider

      request-property-enum-value-removed

    • the agent_override/agent/custom_stt_config/provider request property type/format changed from string/ to /

      request-property-type-changed

    • added the new gpt-5.5 enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new gpt-5.5 enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new gpt-5.5 enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

  • a44406f743c2651See the full diff
    • removed the enum value af-ZA of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ar-SA of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value az-AZ of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value bg-BG of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value bs-BA of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ca-ES of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value cs-CZ of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value cy-GB of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value da-DK of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value de-DE of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value el-GR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value en-AU of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value en-GB of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value en-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value en-NZ of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value en-US of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value es-419 of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value es-ES of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value fa-IR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value fi-FI of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value fil-PH of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value fr-CA of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value fr-FR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value gl-ES of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value he-IL of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value hi-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value hr-HR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value hu-HU of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value hy-AM of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value id-ID of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value is-IS of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value it-IT of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ja-JP of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value kk-KZ of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value kn-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ko-KR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value lt-LT of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value lv-LV of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value mk-MK of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value mr-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ms-MY of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value multi of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ne-NP of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value nl-BE of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value nl-NL of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value no-NO of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value pl-PL of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value pt-BR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value pt-PT of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ro-RO of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ru-RU of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value sk-SK of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value sl-SI of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value sr-RS of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value sv-SE of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value sw-KE of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ta-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value th-TH of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value tr-TR of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value uk-UA of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value ur-IN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value vi-VN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value yue-CN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • removed the enum value zh-CN of the request property agent_override/agent/language

      request-property-enum-value-removed

    • the agent_override/agent/language request property type/format changed from string/ to /

      request-property-type-changed

    • added LanguageLegacy subschema #2 to the agent_override/agent/language request property oneOf list

      request-property-one-of-added

  • 8ee53928bf3127See the full diff
    • removed the request property agent_override/agent/normalize_for_speech

      request-property-removed

    • added the new manual_stopped enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

    • added the new gemini-3.1-flash-lite enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new gemini-3.1-flash-lite enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new gemini-3.1-flash-lite enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

    • added the new s2-pro enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

    • added the new soniox enum value to the request property agent_override/agent/custom_stt_config/provider

      request-property-enum-value-added

    • added the optional property allOf[V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[NodeTransitionUtterance]/transition_type to the response with the 201 status

      response-optional-property-added

    • added the optional property allOf[V2CallBase]/transcript_with_tool_calls/items/oneOf[NodeTransitionUtterance]/transition_type to the response with the 201 status

      response-optional-property-added

    • removed StringAnalysisData EnumAnalysisData BooleanAnalysisData NumberAnalysisData from the agent_override/agent/post_call_analysis_data/items/ request property oneOf list

      request-property-one-of-removed

    • added the new optional request property agent_override/agent/handbook_config

      new-optional-request-property

    • added the new optional request property agent_override/agent/timezone

      new-optional-request-property

    • added AnalysisData CallPresetAnalysisData to the agent_override/agent/post_call_analysis_data/items/ request property oneOf list

      request-property-one-of-added

  • 3aa6f6e028ef46See the full diff
    • removed the enum value gpt-4o-mini-realtime of the request property agent_override/retell_llm/s2s_model

      request-property-enum-value-removed

    • removed the enum value gpt-4o-realtime of the request property agent_override/retell_llm/s2s_model

      request-property-enum-value-removed

    • removed the enum value sonic-2 of the request property agent_override/agent/voice_model

      request-property-enum-value-removed

    • removed the enum value sonic-turbo of the request property agent_override/agent/voice_model

      request-property-enum-value-removed

    • added the new gpt-5.4-mini enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new gpt-5.4-mini enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new gpt-5.4-mini enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

    • added the new gpt-5.4-nano enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new gpt-5.4-nano enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new gpt-5.4-nano enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

  • 424df3aa790014See the full diff
    • removed the request property agent_override/agent/enable_voicemail_detection

      request-property-removed

    • added the new gpt-5.4 enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new gpt-5.4 enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new gpt-5.4 enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

    • added the new gpt-realtime-1.5 enum value to the request property agent_override/retell_llm/s2s_model

      request-property-enum-value-added

  • 8fbf8c54a142729See the full diff
    • the agent_override/agent/post_call_analysis_data/items/oneOf[BooleanAnalysisData]/name request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the agent_override/agent/post_call_analysis_data/items/oneOf[EnumAnalysisData]/name request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the agent_override/agent/post_call_analysis_data/items/oneOf[NumberAnalysisData]/name request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the agent_override/agent/post_call_analysis_data/items/oneOf[StringAnalysisData]/name request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the from_number request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the override_agent_id request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the to_number request property's minLength was increased from 0 to 1

      request-property-min-length-increased

    • the agent_override/agent/ring_duration_ms request property's max was set to 300000.00

      request-property-max-set

    • the agent_override/agent/ring_duration_ms request property's min was set to 5000.00

      request-property-min-set

    • added the new optional request property agent_override/agent/post_call_analysis_data/items/oneOf[BooleanAnalysisData]/required

      new-optional-request-property

    • added the new optional request property agent_override/agent/post_call_analysis_data/items/oneOf[EnumAnalysisData]/required

      new-optional-request-property

    • added the new optional request property agent_override/agent/post_call_analysis_data/items/oneOf[NumberAnalysisData]/required

      new-optional-request-property

    • added the new optional request property agent_override/agent/post_call_analysis_data/items/oneOf[StringAnalysisData]/required

      new-optional-request-property

    • the request property agent_override/agent/custom_stt_config became nullable

      request-property-became-nullable

    • added the new claude-4.6-sonnet enum value to the request property agent_override/agent/post_call_analysis_model

      request-property-enum-value-added

    • added the new claude-4.6-sonnet enum value to the request property agent_override/conversation_flow/model_choice/oneOf[ModelChoiceCascading]/model

      request-property-enum-value-added

    • added the new claude-4.6-sonnet enum value to the request property agent_override/retell_llm/model

      request-property-enum-value-added

    • added the new eleven_v3 enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

  • e89903d2c91031See the full diff
    • added the new ivr_reached enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

    • added the new transfer_bridged enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

    • added the new transfer_cancelled enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

    • added the new optional request property agent_override/agent/enable_dynamic_responsiveness

      new-optional-request-property

    This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

    • added the new optional request property agent_override/agent/analysis_user_sentiment_prompt

      new-optional-request-property

    • added the new optional request property agent_override/agent/data_storage_retention_days

      new-optional-request-property

    • added the new s1 enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

    • added the optional property allOf[V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[ToolCallResultUtterance]/successful to the response with the 201 status

      response-optional-property-added

    • added the optional property allOf[V2CallBase]/transcript_with_tool_calls/items/oneOf[ToolCallResultUtterance]/successful to the response with the 201 status

      response-optional-property-added

    • removed the ivr_reached enum value from the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-removed

    • added the new ivr_reached enum value to the allOf[V2CallBase]/disconnection_reason response property for the response status 201

      response-property-enum-value-added

    • added the new cs-CZ enum value to the request property agent_override/agent/language

      request-property-enum-value-added

    • added the new speech-2.8-turbo enum value to the request property agent_override/agent/voice_model

      request-property-enum-value-added

  • 0bf5cea5dfcc62See the full diff
    • the agent_override/agent/interruption_sensitivity request property's max was set to 1.00

      request-property-max-set

    • the agent_override/agent/responsiveness request property's max was set to 1.00

      request-property-max-set

    • the agent_override/agent/voice_speed request property's max was set to 2.00

      request-property-max-set

    • the agent_override/agent/interruption_sensitivity request property's min was set to 0.00

      request-property-min-set

    • the agent_override/agent/responsiveness request property's min was set to 0.00

      request-property-min-set

    • the agent_override/agent/voice_speed request property's min was set to 0.50

      request-property-min-set

    • added the new optional request property agent_override/agent/webhook_events

      new-optional-request-property

    • added the optional property allOf[V2CallBase]/call_cost/product_costs/items/is_transfer_leg_cost to the response with the 201 status

      response-optional-property-added

    • removed the enum value none of the request property agent_override/agent/denoising_mode

      request-property-enum-value-removed

    • added the new optional request property agent_override/agent/enable_dynamic_voice_speed

      new-optional-request-property

    • added the new optional request property agent_override/agent/guardrail_config

      new-optional-request-property

    • added the new no-denoise enum value to the request property agent_override/agent/denoising_mode

      request-property-enum-value-added

    This revision also has 1 change that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog

  • 427e77039f39110See the full diff
    • request property agent_override/agent/voice_emotion was restricted to a list of enum values

      request-property-became-enum

    • added the new angry enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new calm enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new fearful enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new happy enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new none enum value to the request property agent_override/agent/denoising_mode

      request-property-enum-value-added

    • added the new sad enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new surprised enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new sympathetic enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the new undefined enum value to the request property agent_override/agent/voice_emotion

      request-property-enum-value-added

    • added the optional property allOf[V2CallBase]/transfer_end_timestamp to the response with the 201 status

      response-optional-property-added

    • added the new optional request property agent_override/agent/voice_emotion

      new-optional-request-property